Вычисли x если 28: x=10 уравнение

Вставьте слова типо : isnt или is it итд

Spain is a lovely country, __________
You love the beaches,_________
You lived on the tenth floor, ________
My girlfriend has bought an awful dog,_____
It was lovely seeing those buildings, _______
You wouldn’t know where the police station is, ______
You don’t know of any good jobs, __________ 
You couldn’t help me with my homework, _______
You haven’t got $10 to lend me,________
Are you going to go to Rome,__________
Let’s go to the cinema,______
I am a good girl,_______

Помогите,пожалуйста,вставить правильные английские слова в диалог.

Shop-assistant : They ...... 20 pounds.

Customer: Here you ....... ,50 pounds.

Shop-assistant: Thank you ,this ........ Your change-30 pounds.